JPH05288297A - Adjustable bolt - Google Patents

Abstract

PURPOSE:To provide an adjustable bolt that removes the concentration of load by unifying contact between the bolt with a screw and a stand without any relation to the inclination of a floor surface. CONSTITUTION:A bolt 7 with a screw which is equipped in the middle of its length with a head 15 that is to be engaged with a wrench and whose end surface is formed spherically, and a stand 8 which is equipped with a recessed surface of a conical shape to support the bolt 7 with the screw by coming into contact with the spherical end surface of the head 15, are equipped. Even if the stand 8 is inclined by the inclination of a floor surface, contact between the spherical end surface of the head 15 and the recessed surface of a conical shape of the stand 8 is circumferentially uniform, and the concentration of load does not occur.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting bolt for stably installing floor surface installation equipment such as vending machines and production equipment machines.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional adjusting bolt.
The configuration shown in is generally used. As shown in the figure, the adjusting bolt is a hexagonal nut 1 for the purpose of preventing the tightening / deflection of the floor installation device 12, a screwed bolt 2 having a head 15 for engaging a wrench, and a cushioning material for absorbing vibration. 6
A pedestal 5 to which is adhered, a bolt 2 with a screw, a washer 4 for preventing the pedestal 5 from slipping off, and a bolt 3 for fixing the washer 4, and a contact surface 13 between the bolt 2 with a screw and the pedestal 5 is a flat surface.
The restriction portion 14 is fitted, and the difference in the height of the installation floor surface is absorbed by changing the screwing amount of the screw bolt 2 into the installation device 12.

The cushion material 6 is compressed by the weight of the installed equipment, and the bottom surface of the pedestal 5 and the bottom surface of the cushion material 6 are flush with each other.

[0004]

With such a conventional adjusting bolt, it is difficult to keep the contact surfaces of the threaded bolt 2 and the pedestal 5 parallel to each other when the equipment installation floor surface has an inclination or unevenness. As shown in FIG. 6, the contacting portions are locally concentrated and the load is transmitted non-uniformly, so that the allowable load is lower than that in the case of the uniformly distributed load. Moreover, the uneven load makes it difficult to adjust the height. Also, the pedestal 5
Since the bottom surface and the cushion material 6 are on the same surface, it is difficult to absorb vibration.

The present invention solves the above-mentioned problems of the prior art by making the contact of the screwed bolt mount uniform regardless of the inclination of the floor surface, eliminating the concentration of load, facilitating the adjustment of the installation height, and the installation. It is an object of the present invention to provide an adjustment bolt that absorbs vibration of equipment.

[0006]

In order to achieve the above object, the adjusting bolt of the present invention is provided with a head for engaging a wrench in the middle of its length, and the end surface of the head is a screw having a spherical shape. And a pedestal having a conical concave surface that contacts the spherical end surface of the head and supports the threaded bolt.

[0007]

Even if the pedestal is inclined due to the inclination of the floor surface, the spherical end surface of the head and the conical concave surface of the pedestal are evenly contacted on the circumference, and the load is not concentrated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A large 1 is an adjusting bolt of the present invention, 1 is a hexagonal nut for preventing fastening and loosening with the floor installation device 12, 7 is a bolt with a screw, and is screwed to the outer diameter of the upper end portion as shown in FIGS. Equipped with a taper at the lower end and a washer 9 and a retaining ring 10 for preventing slippage at the tip,
A head 15 for engaging a wrench is provided between the upper end and the lower end. The lower end surface of the head 15 is formed in a spherical shape as shown in FIGS.

Reference numeral 8 denotes a pedestal, which has a conical concave surface which contacts the lower end surface of the head 15 to support the threaded bolt 7 as shown in FIGS. 1 and 4, and which is opened at the center of the conical concave surface. A hole through which the lower end portion of the threaded bolt 7 is formed, which is tapered in the opposite direction to the lower end portion of the threaded bolt 7, and the recess 16 that accommodates the tip of the threaded bolt 7, the washer 9 and the retaining ring 10. In addition, the cushion material 11 is provided in the space on the bottom surface. The surface of the recess 16 facing the washer 9 is formed in a conical shape, and the washer 9 can move without difficulty even if the pedestal 8 is tilted.

Since the adjusting bolt of the present invention has the above-mentioned structure, even if the floor surface is inclined, the contact between the threaded bolt 7 and the pedestal 8 is uniform on the circumference as shown in FIG. Do not wake up. Further, as shown in FIG. 1, if the thickness of the cushion material 11 is selected so that the cushion material 11 protrudes from the lower surface of the pedestal 8 when the floor installation equipment 12 is attached and the load is applied, the floor installation equipment 12 The transmission of vibrations from the floor to the floor can be reduced.

[0011]

As is apparent from the above description, according to the adjust bolt of the present invention, the screwed bolt and the pedestal are installed even when the floor is inclined or there is a difference in height during the installation of the floor installation equipment. It is possible to maintain uniform contact on the circumference, the load of the installed equipment can be transmitted evenly, the load can be used without lowering the allowable load, and the height of the equipment can be easily stabilized. Can be installed. In addition, the cushion material can also absorb the vibration of the installed equipment and the vibration of the floor surface.

[Brief description of drawings]

FIG. 1 is a partial sectional side view of an adjusting bolt of the present invention.

FIG. 2 is a view for explaining the operation of the adjusting bolt of the present invention.

FIG. 3 is a view for explaining the structure of the adjustment bolt of the present invention.

FIG. 4 is a view for explaining the structure of the adjusting bolt of the present invention.

FIG. 5 is a partial sectional side view of a conventional adjustment bolt.

FIG. 6 is a view for explaining the operation of a conventional adjustment bolt.

[Explanation of symbols]

 7 Screwed bolt 8 Cradle 11 Cushion material 15 Head

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Fujisaki 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. A screw bolt having a head engaging with a wrench in the middle of its length, and an end surface of said head having a spherical shape, and a spherical bolt end surface of said head being contacted to support said screw bolt. Adjusting bolt with a frame having a conical concave surface. 2. The pedestal is provided with a cushion material in the space on the bottom surface, and the thickness of the cushion material is larger than the depth of the space when a load is applied to the bolts with screws.
The cushion material is protruding from the bottom surface of the gantry.
Adjust bolt described.